Building construction and the like



c. N. FORREST BUILDfNG CONSTRUCTION AND THE LIKE Filed se t. 25, 1925 'INVENTOR:

Charla N. Fbrresf,

I BY 1W ZTORNl-IYS.

' WITNESSES such a wall.

Patented July .13, 1926.

ciiARLE's N. sunrises, itAI-IWAY, NEW innsnr. rssiaaba To cairn Banana As- PHALT COMPANY, or PHILADELPHIA, PENNSYLVANIA, A CORPORATION or WEST VIRGINIA.

BUILDING CONSTRUCTION AN D THE LIKE.

Application filed September 23, 1925. Serial No. 58,018,

to improve, expedite, and cheapen the com struction of such walls. 7

In the drawings, Fig. I is a fragmentary perspective view of a wall embodying my invention, partly in section and with various rzterior layers partly broken a ay, illustrating various stages in the construction of Fig. 11 is a similar view illustrating a somewhat ditferent form of construction.

The construction here shown comprises the usual 2 inch by 4 inch or other studding 5 placed at 16 inch or other suitable intervals (on centers). On this studding 5 is a covering or layer 6 of foraminous character, such as a wire mesh like chicken wire secured to the supports 5 by nails or staples 7, and preferably stretched taut enough across the intervals between the supports to be reasonably firm and unyielding. Over this backing 6 is secured a covering or layer 8 of flexible bituminous stucco base, as it is termed, a material resembling mineralsurfaced bituminous roofing, and formed by saturating and coating bibulous paper or rag felt with hot, molten bitumen and embedding coarse mineral granules inthebitumen while it is still soft. This gritted base layer 8 may be secured in any suitable manner, as by nails 9 driven through the metallic mesh backing; 6 into the supports5. It may preterably be in vertical strips overlapping vertically on the studding 5, with horizontal lapped or other end joints 10. Plaster or stucco 11 may be applied wetdirectly to this base 8, with a trowel or a float. During this operatiom the backing- 6sustains the flexible base 8 against flexing.

Such a backing 6 is particularly advanta geous in supporting the horizontal laps 10 of the flexible bituminous base, since it is at these laps 10 that sagging is most likely to occur. In some cases, indeed, it may even suiiice to employ the backing 6 in the form of from stud to stud'directly under each horizontal lap 10 only, as shown in FigII, without any backing whatever underthe rest of the bituminous base.

While any convenient or preferred size of wire mesh may be used for the backing 6, a very thin gauge of wire and a mesh of one inch (or more) will generally be found satisfactory. The wire need not necessarily be galvanized or-otherwiseprotected against rusting, but. may be of ordinary black iron, since its decay during the subsequent life of the structure will have no bearing on its important functionof supporting the bituminous base during theapplication of the plaster.

The practical advantage of my backed bituminous stucco base construction over ordinarymetallic lathing will be readily apparent. With expanded metal lat-hing, the plaster must penetrate its meshes in substantial amounts in order to key to it properly; but the mineral surfaced flexible stucco baseis impermeable to the plaster, and holds thelatter without necessity for penetration. At the same time, the metallic mesh backing imparts to the wall as good practical rigidity during plastering as in the old construction.

Having thus described my claim i 1. A wall construction comprising, in cominvention, I

bination with spaced supports and substantially impermeable mineralurfaced flexible bituminous stucco base thereon. a foraminous'backing; "for said base extending between said supports.

2. A wall construction comprising, in combination with spaced supports and substantially impermeable mineral-surfaced flexible bituminous stucco base thereon, a

'metallic mesh backing for said base extend ing between said supports.

3. A wall construction coimorising, in combination with spaced supports and substantially impermeable mineral-surfaced flexible bituminous stucco base thereon, a wire mesh backing for said base stretched taut across the intervals between said supports.

strips 6 some six inches wide, stretched 4. A Wall construction comprising, in comand extending between said supports, and bination With studding and substantially substantially impervious mineral-surfaced 10 impermeable mineral-surfaced flexible bitubituminous stucco base over said backing,

minous stucco base thereon, a backing of independently secured to said supports. chicken Wire for said base stretched over In testimony whereof, I have hereunto said supports. signed my name at Maurer, N. J this 17th 5. A Wall construction comprising spaced day Sept, 1925.

supports, a metallic mesh backing secured to CHARLES N. F OR-REST. 

